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CVE-2025-39867
netfilter: nft_set_pipapo: fix null deref for empty set
Description

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

INFO

Published Date :

Sept. 23, 2025, 6:15 a.m.

Last Modified :

Sept. 29, 2025, 6:16 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-39867 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Apply the fix for the null dereference in nft_set_pipapo.
  • Update the Linux kernel to include the fix.
  • Ensure the correct check for scratch map is in place.
  • Use the pattern of the avx2 version for clarity.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-39867 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-39867 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 29, 2025

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 29, 2025

    Action Type Old Value New Value
    Changed Description In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: fix null deref for empty set Blamed commit broke the check for a null scratch map: - if (unlikely(!m || !*raw_cpu_ptr(m->scratch))) + if (unlikely(!raw_cpu_ptr(m->scratch))) This should have been "if (!*raw_ ...)". Use the pattern of the avx2 version which is more readable. This can only be reproduced if avx2 support isn't available. Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
    Removed Reference kernel.org: https://git.kernel.org/stable/c/30c1d25b9870d551be42535067d5481668b5e6f3
    Removed Reference kernel.org: https://git.kernel.org/stable/c/44b2be6d5994ddf07ecc86c01d3279bfa13e9ef6
    Removed Reference kernel.org: https://git.kernel.org/stable/c/51a321b480d1e753667f6aea497312461563f9fe
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 23, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: fix null deref for empty set Blamed commit broke the check for a null scratch map: - if (unlikely(!m || !*raw_cpu_ptr(m->scratch))) + if (unlikely(!raw_cpu_ptr(m->scratch))) This should have been "if (!*raw_ ...)". Use the pattern of the avx2 version which is more readable. This can only be reproduced if avx2 support isn't available.
    Added Reference https://git.kernel.org/stable/c/30c1d25b9870d551be42535067d5481668b5e6f3
    Added Reference https://git.kernel.org/stable/c/44b2be6d5994ddf07ecc86c01d3279bfa13e9ef6
    Added Reference https://git.kernel.org/stable/c/51a321b480d1e753667f6aea497312461563f9fe
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.